Sensors

Barry Huang/Reuters

Tracking Exactly How Much Air Pollution You're Exposed To

A fascinating new project maps the air quality fluctuations within a city.

Shutterstock

The Future of Mapping Is Inside Your Home and Office

According to Google.

Nate Dorr/Flickr

2 Very Different Ideas for Preventing Subway Deaths

To keep people from falling onto the tracks, New York City is testing lasers. Osaka, Japan, is betting on ropes.

Lynette Jones

'When It's Time to Make the Next Turn, the Left Side of Your Seat Will Buzz'

How "tactile displays" could help lead to less distracted driving and transform the way we navigate.